Electronic device to be directly charged by a charging device

ABSTRACT

An electronic system may include a charging device and an electronic device. The charging device may include an input port, a charge circuit, a storage, and a connector device. The charging device may receive a direct current (DC) voltage at the input port. The charge circuit may receive the DC voltage and provide a charged voltage to the storage. The electronic device may include a body, a battery, a first pad directly on the battery and a second pad directly on the battery. The battery may receive the DC charged voltage when the electronic device is coupled to the charging device.

CROSS-REFERENCE TO RELATED APPLICATION

This application is a Continuation Application of U.S. patentapplication Ser. No. 14/751,886, filed Jun. 26, 2015, the subject matterof which is incorporated herein by reference.

BACKGROUND Field

Embodiments may relate to an electronic device to be powered or chargedby a direct charge.

BRIEF DESCRIPTION OF THE DRAWINGS

Arrangements and embodiments may be described in detail with referenceto the following drawings in which like reference numerals refer to likeelements and wherein:

FIG. 1 shows an electronic device to be charged by an alternate current(AC) adapter according to an example arrangement;

FIG. 2 shows an electronic device to be directly charged according to anexample embodiment;

FIG. 3 shows an electronic charging system according to an exampleembodiment;

FIG. 4 shows a battery and two charging pads according to an exampleembodiment;

FIGS. 5A-5B show an electronic device according to an exampleembodiment; and

FIG. 6 shows an electronic device coupled to a charging station (orcharging device) according to an example embodiment.

DETAILED DESCRIPTION

An electronic device may be any one of a mobile terminal, a mobiledevice, a mobile computing platform, a mobile platform, a laptopcomputer, a tablet, an ultra-mobile personal computer, a mobile Internetdevice, a smartphone, a personal digital assistant, a display device, atelevision (TV), etc. The electronic device may also be referred to as aterminal.

In the following detailed description, like numerals and characters maybe used to designate identical, corresponding and/or similar componentsin differing figure drawings. Further, in the detailed description tofollow, example sizes/models/values/ranges may be given althoughembodiments are not limited to the same. Where specific details are setforth in order to describe example embodiments, it should be apparent toone skilled in the art that embodiments may be practiced without thesespecific details.

FIG. 1 shows an electronic device 100 to be charged (or powered) by analternate current (AC) according to an example arrangement. Otherarrangements and configurations may also be provided.

FIG. 1 shows an alternate current (AC) power source 10 to provide powerto an AC adapter 40. The AC adapter 40 is to provide power to anelectronic device 100 (or electronic apparatus). FIG. 1 shows the ACpower source 10 directly coupled to the AC adaptor 40. The AC adaptor 40may be directly coupled to the electronic device 100.

The AC power source 10 may provide AC power to the AC adapter 40, whichmay provide direct current (DC) power for the electronic device 100. Thereceived DC power may be used to power components of the electronicdevice 100. The received power may also be stored in a battery 120provided in (or at) a battery port of the electronic device 100. Thebattery 120 may be provided within a body or housing.

The electronic device 100 may include an input port 102 and a platform110 that includes an input port 112, a battery charger 114, a batteryport to receive the battery 120 (or other charge storage device) and aload 118.

The load 118 may be any device or component on the electronic device 100(or coupled to the electronic device 100) that operates based on areceived voltage. For example, the load 118 may be a display device, amemory, a processor, a controller, an input/output device, etc. The load118 may be coupled to the battery 120. The load 118 may also be coupledto the battery charger 114.

FIG. 1 shows the AC adapter 40 as being external (and separate) to theelectronic device 100. However, the AC adapter 40 may also be internalto the electronic device 100.

The AC power source 10 may provide an AC voltage (or AC power) to the ACadapter 40. The AC adapter 40 may convert the received AC voltage to adirect current (DC) voltage. The AC adapter 40 may also be considered anAC/DC adapter or an AC/DC converter.

If the AC adapter 40 is external to the electronic device 100, then theAC adapter 40 may receive an AC voltage from the AC power source 10 andprovide a DC voltage to the input port 102 (and to the battery charger114).

The DC voltage may be provided to the battery charger 114. The batterycharger 114 may provide the DC voltage to the battery 120 (provided atthe battery port). The DC voltage may also, or alternatively, beprovided to the load 118 (directly or indirectly via the battery charger114) so as to operate the electronic device 100. For example, the DCvoltage may be used to power a display device (or other component) onthe electronic device 100. A voltage regulator may also be provided onthe platform 110 (of the electronic device 100) to stabilize the voltageprior to being provided to the load.

The AC adapter 40 may be designed to receive AC power from the AC powersource 10 (i.e., an AC outlet) at a specific frequency (such as a lowfrequency of 50 Hertz (Hz)) and to have a voltage that may vary based ona country where the AC adapter 40 is used, for example.

The AC adapter 40 may store a significant amount of energy (or power) inorder to filter out a sinusoidal nature of the AC voltage (or power)inputted from the AC power source 10. In at least one disadvantageousarrangement, the AC adapter 40 may include a bulk capacitor, which maybe a large component of the AC adapter 40. The bulk capacitor may bespecifically designed to smooth a low-frequency oscillation due to ACline frequency (such as 50 Hz or 60 Hz).

The battery charger 114 may be considered a charging circuit (or chargecircuit). The battery charger 114 may provide an output voltage to thebattery 120. The battery 120 may be charged by the voltage received fromthe battery charger 114. The battery charger 114 may be an integratedcircuit on a motherboard. The battery charger may be a step-down voltageconverter that translates the voltage provided at the input port, andmay be designed to provide the voltage and current necessary to chargethe battery 120.

The electronic device 100 may need to be charged in order to properlyoperate. A user may desire to charge the electronic device 100 in arapid manner. However, this may require a large amount of current to beprovided. For example, a user may desire to charge the electronic device100 within a 5 minute time frame by using the AC adapter 40. In order toprovide such a fast charging of the battery, the charging circuit on theelectronic device 100 may have to be able to handle the power (andcurrent) necessary to fully charge the battery in a short period oftime.

As one example, if the battery 120 is to be charged in a fast manner(i.e., using a high current), then the battery charger 114 (or chargingcircuit) may require high power field effect transistors (FETs), largecircuit board tracks and a thermal solution that is capable of dealingwith a high power and a high current associated with a fast charge. Forexample, the charging of a 1 amp/hour (Ah) battery in one minute mayrequire a current of greater than 60 amps. As another example, in orderto charge a battery in a one minute time frame, a mobile terminal (i.e.,one example of an electronic device) may require more than 120 amps tobe delivered to the battery 112.

FIG. 2 shows an electronic device to be directly charged according to anexample embodiment. Other embodiments and configurations may also beprovided.

FIG. 2 shows the electronic device 100 includes a body 101 havingcomponents provided therein. The body 101 may include the batterycharger 114 (or charging circuit) and the battery 120. The electronicdevice 100 may include a protection mechanism (or protection device).The protection mechanism may prevent a user from gaining access toterminals or pads of the battery inside the device 100. The protectionmechanism may include a surface 122 (or cover) that moves relative to asurface 124 on the battery 120.

FIG. 2 shows an example embodiment in which charging pads are on a flatsurface 124 of a battery and sliding surface 128 that covers thecharging pads when the electronic device 100 is in use, and slidesupwards to expose the charging pads for purposes of battery charging.FIG. 2 shows the surface 122 that has been moved upward to expose padson the surface 124. The surface 122 may move based on contact with anexternal object.

FIG. 2 also shows the battery 120, a first pad 130 (or first chargingpad) and a second pad 140 (or a second charging pad). The first pad 130may be a direct charge pad that is directly provided on the battery 120(such as at the surface 124). The second pad 140 may be a direct chargepad that is directly provided on the battery 120 (such as at the surface124). Alternatively, connection points, tabs or other means may beconnected to the battery terminals with high-current conductors, such asmetal strips.

The first and second pads 130, 140 may be metallic pads (or metallicsurfaces) that are in direct contact with the battery 120. As such,there are no wires (or other connecting device) between the pads 130,140 and the battery 120. The first pad 130 may be a metallic surface onthe battery, and the second pad 140 may be a metallic surface on thebattery.

The first and second pads 130, 140 are direct charge pads that exposeraw terminals of the battery 120. In one example, the first pad 130 maydirectly contact an anode of the battery 120, and the second pad 140 maydirectly contact a cathode of the battery 120. In another example, thefirst pad 130 may directly contact a cathode of the battery 120, and thesecond pad 140 may directly contact an anode of the battery 120.

The first and second pads 130, 140 directly contact an output connectionterminal (or connection device) of a charging device and receive power(or voltage) from the charging device. The battery 120 may therebydirectly receive a DC voltage (or power) without using the batterycharger 114 within the electronic device 100. In other words, thebattery 120 may directly receive a DC voltage (via the pads 130, 140)from an external power source, and without using the battery charger114. Accordingly, the battery of the electronic device is to be directlycharged using the first and second pads 130, 140.

The protection mechanism or protection device may include the slidingsurface 122 to cover the first pad 130 and the second pad 140. Thesliding surface 122 may move based on contact with an external object,such as a connector device.

FIG. 3 shows an electronic charging system (or electronic system)according to an example embodiment. Other embodiments and configurationsmay also be provided.

FIG. 3 shows the AC power source 10, the AC adapter 40, a chargingstation 200 (or charging device) and the electronic device 100. The ACpower source 10 may provide AC power (i.e., AC voltage) to the ACadapter 40. The AC adapter 40 may be coupled to the charging station 200by a wire connection, for example. The AC adapter 40 may couple to aninput port 202 of the charging station 200.

FIG. 3 shows the electronic device 100 being physically separated fromthe charging station 200. In order to perform charging of the battery120, the electronic device 100 may need to be physically coupled (ordocked) to the charging station 200. The electronic device 100 mayreceive a DC voltage (or DC charged voltage) when the electronic deviceis coupled (or docked) to the charging station (or charging device).

The charging station 200 may include an input port 202, a high powercharge circuit 210, a high power storage 220 and an output connectordevice 230 (or connector device).

The AC adapter 40 may provide a DC voltage to the input port 202 of thecharging station 200.

The DC voltage may be provided to the high power charge circuit 210. Thecharge circuit 210 may be considered a high power charge circuit. Thecharge circuit 210 may be considered a battery charger. The chargecircuit 210 may function to accumulate energy to the high power storage220. This may be analogous to charging an automatic defibrillator,which, when charged, may be capable of delivering a large packet ofenergy in a short period.

The charge circuit 210 may provide charged DC voltage to the storage 220(within the charging station 200) based on the received DC voltage. Thestorage 220 may be considered a high power storage. The storage 220 maybe capable of dispensing an accumulated charge in a short period(measured in minutes or seconds).

The charging station 200 may avoid needing large amounts of power byaccumulating energy over time. The accumulated energy may be temporarilystored in the storage 220 (of the charging station 200). The storedenergy (or stored DC voltage) may be ready to be quickly provided intothe electronic device 100, when the electronic device 100 is coupled tothe charging station 200.

A very high power charge circuit may be provided between the high powerstorage 220 and the connector device 230 in order to provide morevoltage from the storage 220 to the battery 120.

The storage 220 may store a large amount of energy and dispense it at ahigh power. As such, the storage 220 may be a large capacitor, alithium-titanate battery, etc. The storage 220 may be able to store alarge amount of energy over time. Such amounts of power may besufficient to charge one or more electronic devices in a very shortamount of time. The amount of accumulated energy in the storage 220 maybe sufficient to charge one or more multiple devices.

When the electronic device 100 is physically connected to the chargingstation 200 (via the connector device 230), then power (i.e., current)may be directly provided to the battery 120 (of the electronic device100). The power may be directly provided to the battery 120 by use ofthe pads 130, 140 (or direct charge pads). This may avoid using acharging circuit (such as the battery charger 114) on the electronicdevice 100. Thus, larger amounts of power may be provided to the battery120 in a faster manner, removing the need for high powered chargecircuits in the electronic device 100 and high power charging wires andports.

The battery 120 may receive the DC voltage from the storage 220 when theelectronic device 100 is coupled to the connector device 230.

As one example, the storage 220 may be a lithium-titanate battery cellthat may be fully charged in approximately 5 minutes. The stored energy(or voltage) may then be dispensed to the battery 120 (of the electronicdevice 100) in a similar amount of time. Alternatively, a modest powerAC adapter may charge the storage 220 in a much longer time (such as anhour), yet still discharge the energy necessary to charge the device inminutes.

As one example, the electronic device 100 (such as a mobile terminal)may have a lithium-titanate battery cell that measures 5.5 mm×42 mm×60mm and has a storage capacity of 2 Ah (amp hours). In contrast, thestorage 220 (of the charging station 200) may have 2 lithium-titanatebattery cells, that each measure 15 mm×42 mm×60 mm and have a totalstorage capacity of 4 Ah (amp hours).

The AC adapter 40 may be capable of providing 90 Watts (W). The ACadapter 40 may charge the charging station 200 in approximately 20minutes, for example. Due to the storage 220 of the charging station (ascompared to the electronic device 100), the charging station 200 mayhave two (2) times the energy capacity of the electronic device 100.Accordingly, the charging station 200 may not need to be fully chargedall the time in order to completely charge the electronic device 100,when the electronic device 100 is physically connected to the chargingstation 200 via the connector device 230.

The electronic device 100 may physically connect to the charging station200 (or charging device). The electronic device 100 may be docked at thecharging station 200 in order to receive power from the storage 220 ofthe charging station 200. When docked, the protection mechanism mayexpose the first and second pads 130, 140 to corresponding matching padson the charging station 200.

The electronic device 100 may be considered as being physicallyconnected to the charging station 200 when the pads 130, 140 (of thebattery 120) are physically touching the connector device 230 of thecharging station 200. In at least one embodiment, the connector device230 may include a first connector to physically contact the first pad130 and a second connector to physically contact the second pad 140.

When the electronic device 100 is docked (or connected to) at thecharging station 200 (or charging device), then the battery 120 (of theelectronic device 100) may be charged by the storage 220 (of thecharging station) in less than 2 minutes, for example, if the electronic100 device can handle the required current. A very high power chargecircuit may be provided between the high power storage and the outputconnector device 230.

FIG. 4 shows a battery and two charge pads according to an exampleembodiment. Other embodiments and configurations may also be provided.

The battery 120 may be provided at a battery port within the body 101(or housing) of the electronic device 100. The battery 120 may includean anode and a cathode. FIG. 4 shows the first pad 130 and the secondpad 140 directly on the battery 120. The first and second pads 130, 140may be provided on a surface of the battery 120. The pads 130, 140 maybe exposed based on movement of the surface 122. The first pad 130 maycorrespond to the anode of the battery 120 by directly contacting theanode, and the second pad 140 may correspond to the cathode of thebattery by directly contacting the cathode. Alternatively, the first pad130 may correspond to the cathode of the battery 120 by directlycontacting the cathode, and the second pad 140 may correspond to theanode of the battery 120 by directly contacting the anode.

The first pad 130 may be a metallic surface on the battery 120, and thesecond pad 140 may be a metallic surface on the battery 120. The pads130, 140 may be made of one of nickel-plated steel, copper andgold-coated in order to achieve good electrical conductivity.

The pads 130, 140 may be provided at one end of the battery 120 so thatthe pads 130, 140 may physically contact the connector device 230 of thecharging station 200 (or charging device).

The pads 130, 140, or other forms of high current connector, may beprovided directly on the battery 120 in order to avoid any wiring and/orcircuitry. This may help to avoid use of the charging circuitry 114.Alternatively, the pads 130, 140 may be connected to the batteryterminals with high current conductors such as metal strips.

FIGS. 5A-5B show an electronic device according to an exampleembodiment. Other embodiments and configurations may also be provided.

FIG. 5A is a side view of the electronic device 100 and shows thebattery 120 provided within a body (or housing). FIG. 5A shows the firstpad 130 and the second pad 140 at the end of the battery 120.

The electronic device 100 may include a latch (or battery latch) thatopens and closes in order to provide access to the first and second pads130, 140. FIG. 5A shows a latch 160 of the electronic device in a closedposition, and FIG. 5B shows the latch 160 in an opened position. Thelatch 160 may be opened based on contact with an external apparatus ordevice, such as the connector device 230 (of the charging station). Thelatch 160 opens and closes in order to access the battery 120 and/or thepads 130/140 (of the battery 120). The first and second pads 130, 140may be exposed when the latch 160 is open.

The latch 160 may normally be in a closed position in order to preventdebris or water from entering into the body 110 of the electronic device100. The latch 160 may be in an opened position when the latch 160 ispushed (or touched) by an outside object, such as the connector device230. For example, the latch 160 may open (as shown in FIG. 5B) when theelectronic device 100 becomes coupled to the charging station 200. Whenthe latch 160 is opened, then an outside object may physically contactthe pads 130, 140 of the battery 120. More specifically, when the latch160 is opened, then an outside object may physically contact the pads130, 140 at the one end of the battery 120.

FIG. 6 shows an electronic device coupled to a charging station (orcharging device) according to an example embodiment. Other embodimentsand configuration may also be provided.

FIG. 6 shows the charging station 200 that includes the connector device230, which includes a first terminal 250 and a second terminal 260. Thefirst terminal 250 may physically (or directly) contact the first pad130 and the second terminal 260 may physically (or directly) contact thesecond pad 140. The connector device 230 may physically push the latch160 (of the electronic device 100) into an opened position as theelectronic device 100 is being docked at the charging station 200 (orcharging device).

Once the electronic device 100 is physically connected to the chargingstation 200 (by the connector device 230 physically contacting the pads130, 140 of the battery 120), power stored in the storage 220 may bedirectly provided to the battery 120. For example, the first terminal250 may directly contact the first pad 130, and the second terminal 260may directly contact the second pad 140. The battery may receive DCvoltage from the storage 220 of the charging device when the electronicdevice is coupled to the connector device 230 of the charging station.

The following examples pertain to further embodiments.

Example 1 is an electronic system comprising: a charging deviceincluding an input port, a charge circuit, a storage, and a connectordevice, the input port to receive a direct current (DC) voltage, thecharge circuit to receive the DC voltage and to provide the DC voltageto the storage; and an electronic device that includes a body, abattery, a first pad directly on the battery and a second pad directlyon the battery, and the battery to receive the DC voltage from thestorage of the charging device when the electronic device is physicallycoupled to the connector device of the charging device.

In Example 2, the subject matter of Example 1 can optionally include theconnector device includes a first terminal and a second terminal.

In Example 3, the subject matter of Example 1 and Example 2 canoptionally include the first pad to physically contact the firstterminal, and the second pad to physically contact the second terminal.

In Example 4, the subject matter of Example 1 and Example 3 canoptionally include the first pad directly contacts an anode of thebattery, and the second pad directly contacts a cathode of the battery.

In Example 5, the subject matter of Example 1 and Example 3 canoptionally include the first pad directly contacts a cathode of thebattery, and the second pad directly contacts an anode of the battery.

In Example 6, the subject matter of Example 1 and Examples 4-5 canoptionally include the first pad is a metallic surface on the battery,and the second pad is a metallic surface on the battery.

In Example 7, the subject matter of Example 1 and Examples 4-5 canoptionally include the first pad is one of nickel-plated steel, copperand gold-coated, and the second pad is one of nickel-plated steel,copper and gold-coated.

In Example 8, the subject matter of Example 1 and Examples 4-5 canoptionally include the electronic device includes a latch at the body.

In Example 9, the subject matter of Example 1 and Example 8 canoptionally include the latch to open based on contact with the connectordevice of the charging device, and the first and second pads to beexposed when the latch is open.

In Example 10, the subject matter of Examples 1-5 can optionally includethe electronic device includes a protection device having a slidingsurface to cover the first pad and the second pad.

In Example 11, the subject matter of Examples 1-5 can optionally includethe storage of the charging device is a battery.

In Example 12, the subject matter of Examples 1-5 can optionally includethe storage of the charging device is a capacitor.

In Example 13, the subject matter of Examples 1-5 can optionally includean alternate current (AC) adapter to receive AC voltage from a firstpower source and to provide the DC voltage to the charging device.

In Example 14, the subject matter of Examples 1 and Example 13 canoptionally include the electronic device further includes a batterycharger to receive power from a second power source, and the batterycharger to provide power to the battery.

In Example 15, the subject matter of Example 1 and Example 14 canoptionally include the battery is to be charged by the charging devicewithout using the battery charger in the electronic device.

Example 16 is an electronic device comprising: a body; a battery to beprovided in the body; a first pad to directly contact the battery; and asecond pad to directly contact the battery, and the first and secondpads to directly receive direct current (DC) voltage from an externalcharging device when the electronic device is physically coupled to theexternal charging device.

In Example 17, the subject matter of Example 16 can optionally includethe first pad directly contacts an anode of the battery, and the secondpad directly contacts a cathode of the battery.

In Example 18, the subject matter of Example 16 can optionally includethe first pad directly contacts a cathode of the battery, and the secondpad directly contacts an anode of the battery.

In Example 19, the subject matter of Examples 16-18 can optionallyinclude the first pad is a metallic surface on the battery, and thesecond pad is a metallic surface on the battery.

In Example 20, the subject matter of Examples 16-18 can optionallyinclude the first pad is one of nickel-plated steel, copper andgold-coated, and the second pad is one of nickel-plated steel, copperand gold-coated.

In Example 21, the subject matter of Example 16 can optionally includewherein the electronic device includes a latch at the body.

In Example 22, the subject matter of Example 16 and Example 21 canoptionally include the latch to open based on contact with a connectordevice of the charging device, and the first and second pads to beexposed when the latch is open.

In Example 23, the subject matter of Example 16 can optionally include16, wherein the electronic device includes a protection device having asliding surface to cover the first pad and the second pad.

In Example 24, the subject matter of Example 16 can optionally include abattery charger to receive power from another power source, and thebattery charger to provide power to the battery based on the powerreceived from the another power source.

In Example 25, the subject matter of Example 16 and Example 24 canoptionally include the battery is to be charged by the external chargingdevice without using the battery charger in the electronic device.

Example 26 is a method of charging an electronic device, comprising:receiving direct current (DC) voltage at a charging device; charging thereceived DC voltage; storing the charged DC voltage at a storage of thecharging device based on the received DC voltage; physically connectingthe electronic device to the charging device; and in response tophysically connecting the electronic device to the charging device,providing DC voltage from the storage to a first pad and a second pad ofthe electronic device, the first pad directly contacts a battery of theelectronic device, and the second pad directly contacts the battery ofthe electronic device.

In Example 27, the subject matter of Example 26 can optionally includethe charging device includes a connector device having a first terminaland a second terminal.

In Example 28, the subject matter of Example 26 and Example 27 canoptionally include physically connecting the electronic device to thecharging device includes: directly contacting the first pad on thebattery to the first terminal of the charging device, and directlycontacting the second pad on the battery to the second terminal of thecharging device.

In Example 29, the subject matter of Example 26 and Example 27 canoptionally include the first pad directly contacts an anode of thebattery, and the second pad directly contacts a cathode of the battery.

In Example 30, the subject matter of Example 26 and Example 27 canoptionally include the first pad directly contacts a cathode of thebattery, and the second pad directly contacts an anode of the battery.

In Example 31, the subject matter of Example 26 and Examples 29-30 canoptionally include the first pad is a metallic surface on the battery,and the second pad is a metallic surface on the battery.

In Example 32, the subject matter of Example 26 can optionally includephysically connecting the electronic device includes opening a latch ofthe electronic device based on contact with the connector device.

In Example 33, the subject matter of Example 26 can optionally includestoring the charged DC voltage at the storage includes storing thecharged DC voltage at a battery.

In Example 34, the subject matter of Example 26 can optionally includestoring the charged DC voltage at the storage includes storing thecharged DC voltage at a capacitor.

In Example 35, the subject matter of Example 26 can optionally includereceiving the DC voltage includes receiving alternate current (AC)voltage from a first power source and providing the DC voltage to thecharging device.

In Example 36, the subject matter of Example 26 and Example 35 canoptionally include charging the battery of the electronic device using asecond power source.

In Example 37, the subject matter of Example 26 and Example 36 canoptionally include the battery is to be charged by the charging devicewithout using a battery charger in the electronic device.

Example 38 is a charging system comprising: first means for receivingdirect current (DC) voltage; second means for storing the DC voltage ina storage based on the received DC voltage; third means for physicallyconnecting a connector device to a first pad and a second pad directlyon a battery of an electronic device; and fourth means for providing thestored DC voltage to the first and second pads on the battery when theelectronic device is coupled to the charging device.

In Example 39, the subject matter of Example 38 can optionally includethe third means includes a first terminal and a second terminal.

In Example 40, the subject matter of Example 38 and Example 39 canoptionally include the first pad on the battery to physically contactthe first terminal, and the second pad on the battery to physicallycontact the second terminal.

In Example 41, the subject matter of Example 38 can optionally includethe first pad directly contacts an anode of the battery, and the secondpad directly contacts a cathode of the battery.

In Example 42, the subject matter of Example 38 can optionally include38, wherein the first pad directly contacts a cathode of the battery,and the second pad directly contacts an anode of the battery.

In Example 43, the subject matter of Example 38 and Examples 41-42 canoptionally include the first pad is a metallic surface on the battery,and the second pad is a metallic surface on the battery.

In Example 44, the subject matter of Example 38 and Examples 41-42 canoptionally include the first pad is one of nickel-plated steel, copperand gold-coated, and the second pad is one of nickel-plated steel,copper and gold-coated.

In Example 45, the subject matter of Example 38 can optionally includethe electronic device includes a latch.

In Example 46, the subject matter of Example 38 and Example 45 canoptionally include the latch to open based on contact with the connectordevice, and the first and second pads to be exposed when the latch isopen.

In Example 47, the subject matter of Example 38 can optionally includethe electronic device includes a protection device having a slidingsurface to cover the first pad and the second pad.

In Example 48, the subject matter of Example 38 can optionally includethe second means is a battery.

In Example 49, the subject matter of Example 38 can optionally includethe second means is a capacitor.

In Example 50, the subject matter of Example 38 can optionally includethe first means includes an alternate current (AC) adapter to receive ACvoltage from a first power source and to provide the DC voltage.

In Example 51, the subject matter of Example 38 and Example 50 canoptionally include the electronic device includes a battery charger toreceive power from a second power source, and the battery charger toprovide power to the battery.

In Example 52, the subject matter of Example 38 and Example 51 canoptionally include the battery is to be charged without using thebattery charger in the electronic device.

Any reference in this specification to “one embodiment,” “anembodiment,” “example embodiment,” etc., means that a particularfeature, structure, or characteristic described in connection with theembodiment is included in at least one embodiment. The appearances ofsuch phrases in various places in the specification are not necessarilyall referring to the same embodiment. Further, when a particularfeature, structure, or characteristic is described in connection withany embodiment, it is submitted that it is within the purview of oneskilled in the art to affect such feature, structure, or characteristicin connection with other ones of the embodiments.

Although embodiments have been described with reference to a number ofillustrative embodiments thereof, it should be understood that numerousother modifications and embodiments can be devised by those skilled inthe art that will fall within the spirit and scope of the principles ofthis disclosure. More particularly, various variations and modificationsare possible in the component parts and/or arrangements of the subjectcombination arrangement within the scope of the disclosure, the drawingsand the appended claims. In addition to variations and modifications inthe component parts and/or arrangements, alternative uses will also beapparent to those skilled in the art.

1-20. (canceled)
 21. An electronic system comprising: a charging deviceincluding a charge circuit, a storage at the charging device, and aconnector device, the charge circuit to receive a direct current (DC)voltage and to provide the DC voltage to the storage; and an electronicdevice that includes a body and a battery, and the battery to receivethe DC voltage from the storage of the charging device when theelectronic device is physically coupled to the connector device of thecharging device, wherein the battery is within the electronic device,wherein the electronic device includes a latch at the body, and whereinthe latch to open based on contact with the connector device of thecharging device.
 22. The electronic system of claim 21, wherein theelectronic device includes a first pad on the battery, and a second padon the battery.
 23. The electronic system of claim 22, wherein the firstpad directly contacts an anode of the battery, and the second paddirectly contacts a cathode of the battery.
 24. The electronic system ofclaim 22, wherein the first pad directly contacts a cathode of thebattery, and the second pad directly contacts an anode of the battery.25. The electronic system of claim 22, wherein the first pad is ametallic surface on the battery, and the second pad is a metallicsurface on the battery.
 26. The electronic system of claim 22, whereinthe connector device includes a first terminal and a second terminal,the first pad to physically contact the first terminal when theelectronic device is physically coupled to the connector device, and thesecond pad to physically contact the second terminal when the electronicdevice is physically coupled to the connector device.
 27. The electronicsystem of claim 22, wherein the first pad is one of nickel-plated steel,copper and gold-coated, and the second pad is one of nickel-platedsteel, copper and gold-coated.
 28. The electronic system of claim 22,wherein the electronic device includes a protection device having asliding surface to cover the first pad and the second pad.
 29. Theelectronic system of claim 21, further comprising an alternate current(AC) adapter to receive AC voltage from a first power source and toprovide the DC voltage to the charging device.
 30. The electronic systemof claim 29, wherein the electronic device further includes a batterycharger to receive power from a second power source, and the batterycharger to provide power to the battery.
 31. The electronic system ofclaim 29, wherein the battery is to be charged by the charging devicewithout using the battery charger in the electronic device.
 32. Anelectronic device comprising: a body, wherein a battery is to beprovided in the body; a first pad to be on the battery; a second pad tobe on the battery, and the first and second pads to receive directcurrent (DC) voltage from an external charging device when theelectronic device is physically coupled to the external charging device;and a latch at the body.
 33. The electronic device of claim 32, whereinthe latch to open based on contact with a connector device of thecharging device.
 34. The electronic device of claim 32, wherein thefirst pad is a metallic surface on the battery, and the second pad is ametallic surface on the battery.
 35. The electronic device of claim 32,wherein the first pad is one of nickel-plated steel, copper andgold-coated, and the second pad is one of nickel-plated steel, copperand gold-coated.
 36. The electronic device of claim 32, comprising aprotection device having a sliding surface to cover the first pad andthe second pad.
 37. A method of charging an electronic device,comprising: storing a direct current (DC) voltage at a storage of acharging device based on received DC voltage; connecting the electronicdevice to a connecting device of the charging device; and in response toconnecting the electronic device to the connecting device of thecharging device, providing DC voltage from the storage to a battery ofthe electronic device, wherein connecting the electronic device to thecharging device includes: contacting a first pad on the battery to theconnecting device of the charging device, and contacting a second pad onthe battery to the connecting device of the charging device, whereinconnecting the electronic device includes opening a latch of theelectronic device.
 38. The method of claim 37, wherein opening the latchis based on contact with the connector device.
 39. The method of claim38, further comprising charging the battery of the electronic deviceusing a second power source.
 40. The method of claim 39, wherein thebattery is to be charged by the charging device without using a batterycharger in the electronic device.